Travel detector or indicator for tires and the like.



3 '1. H. 'FRIEDEN WA LD. 1 TRAVEL DETECTOR 0R i'NDiCATOR FOR TIRES ANDTHE LIKE.

APPLICATION HLED APR. i5, 1909. mama-1.

' 7 PatentedJune 29, 1915.

" I :determine accurately the, amount ofltravel i h-tiresarew ubi tedathislzbein a v van;-

his!" has a mama;-

at Baltimore, Maryland, have. invented certain" new fand'nusefuL-xlmprovements in H nIndicators for ,Tiresg mashe -111a, or-wchithe f ollow ing,is a,,

. a -My-- invention 1s designed to provide.

means by; which tire ma'nuifacturers can very.imp ortant matter in viewhtthe guart antee gi ven by manufacturers as the wear L j=of-the tirefortheanumbemo miles the tire w is 'good for and lacking whichv a' rebatemay -"be'rdeinandedz-yAtsvzpresent so ;far asI am +aware, therehisriorway-to determine this,

and it i s necessary to'depend upon the state-r mechanism; The'pivot'sof the register cas-" '-"-1'-My -invention=notaonlyjiprovidesmeans to, IfIn Fig.2 Z liaa'-'esho' "n"the registering ment of the'purchase'rrm I"establish kconclusively. ,Ijthef number of miles traveled the :ti-r

It is ceedingly' smallywhile perfectly accurate, and-of such dimensionsas to enable me to carry and concealssthe entire register within arecessformed in the material of the tire. It may be sealed therein andonly opened by the manufacturer when the tire is re turned foranypurpose and thus the manufacturer' is enabled to have s an unerringrecord of the number of miles the tire has traveled and to judge as tothe justice of any claimthat may .be made for a rebate.

I do not "limit myself to any particular form'of registering'device norto its location, nor do I insist that the device shall be concealedwithin the tire.

In the accompanying drawings Fi ure 1 is a sectional view of a tire ofor inarv construction showing my detector or indicator carried thereby;Fig. 2 is a plan view of the form of registering device-0r revo lutioncounter which may represent anyimon mi'aionros r'onrmns Quarantine.

a Specification of iettrs-Patent.

a lpr d ef 'lt*kziiownsthatnLiJnGonH, FBIEPEN- K arina'eitizenaof theUnited States, residing,

butto have th se m a s "so carried by vor within' the, tire. as t h i-Inish knowledgesfas :1 .tonthe, use of theftire' without the userlmowingthat the, tire con-1 tains -such' an -gindicatorz or. register. notabsolutely-necessary. to the successful, o eration of the?=inventionthi1t .it shall I be" carriedsecretly,-:but it may: be thuscarried.

aaaaaaeiaaa.

the indieator, an d 'fI prefer to f do this, as

\ ornfi ofsuch a"" device, the view- .showmbeing 'verymuch enlarged."

the accompanying figures; Imay, as 'sl1o \vn'iii 'Fig. 1,' recess thetire to receive H u e nent-an, uranium);nssreudxt,.-njrmnsnn sssxeur'mem QW WE P J shown izi.lI* ig.' 1", inj su'ch a {location i as to" beeate to the least amount of strain. Where the mdica'tjor is entirelyconcealed I refer to hnethe' recesswith a stout-metal :l iningfd, whichwill-resist the tendency to "pressure and within "this casing. I pivotpajama; the casing, 6, containing the j registering mechanism. "I gfindthat" I can make the parts; so small as to leave a-distinct spacebetween ;the recess casingaand the casi n g of the register. orindicatorg and ith'us the reg ster is protected from 'any pressure"which will derange or interfere with the proper working of theregistering struction "consisting of a seriesof wheels ynieslii'ng -with'ea'ch other, constituting ,a v tram v of registering .g'ears whlchindicate tlie'numbej-r of miles traveled." These are "shownfat 1A,.B, C,andfD. The wheel Alias a spindle 01" shaft 1, andpivo'ted theretois alever-E2 which has a weighted-end of-any desigin this lever carrying apush pawl 4,

and-a pull pawl 5 engagingteeth on the pe-- riphery of the wheel A. Thepush pawl 4 abuts and impacts against one of the teeth on the wheel Aand thus constitutes the impact producing member which causes the wheelA toadva'nce. In a similar .Way'the pull paw] 5 acting upon the teethonan opposed edge of the wheel, impacts against and exercises thrust inan opposite direction. The teeth of the vwheel A receiving thisimpact orthrust constitute impact receiving 1nember,' which, due to theircapacity to recoivegsaid impact and to move in a direction away from it,cause the indicating mechanism to become responsive in accordance withthe distance traversed by the wheel of the vehicle. On every revolutionof. the wheel the weighted lever is thrown down against the stop 6 andag'ainst'the tension of a spring 7 and the movement of the Weight orlong end of the lever actuates the pawls.

As 'soon as the lever has been thrown downward, the spring 7 exerts itsforce and throws it up again where it re- -mains until the nextrevolution. of the wheel throws it downward; .Ever'y. revolution movesthe wheel A step by step, and so the number of revolutions are indicatedthrough the train of gearing in order and in the 8 is providedforthewheel A and usual way, and'the sum of the revolutions may beindicated by a 'suitable'dial or dials on the front of the casing. Aholding pawl are provided for the other wheels. prings 10 ke'e the pawlst and 5 in position. 1'

. e I may. construct the lever 2 with an l ordinaryqvveighted. endextending at right angles to the body of the lever, Lprefer to provide apivoted end tothe lever as" shown at, a, this lever' ca rrying upon itsopposite ends weightsections (l, c,'having a rotating weigh-t sectionfarranged centrally. This gives more elasticity and life to the leverand assures its proper reciprocation under 'centrifugal force and theattraction of gravitation; that is, the fact-that a moving element isincorporated upon the long end of the lever tends to diminish the effectof shocks and'to make the lever more responai' ve, than if it were rigidthroughout, to -30 the requirements of the device taking intoconsideration the efiects-of the centrifugal both of which are acforceand gravitation, ti'vefactors throughout 'such times as the device isdoingits work. Itis important to have the lever 2 .sufliciently Weightedso that'the attraction of gravitation will overcome the centrifugal Iforce and assure reciprocation in every rotation of the wheel so thatthe pawls will move the gearing step by step in every reciprocation ofthe lever.

Ido not limit myself as to the form of the lever, and its parts, as theconstruction may be varied in many ways.

Iclaimz- 1. A tirehaving a covered-cavity and a register located of, aprotecting casing tire, of an automatically operated-'device awls 9 beensubjected and tance traversed by the In testimony whereof, Iaffixmy s1gnature therein, the actuation of the register being controlled by thetire, substantially as described.

2. A tire having a recess in the body therelocated within the recess anda travel detector or indicator within thecasing actuated by the movementof thetire substantially as described. i 3. The combination with anautomobile tire therefor, an impact'receiving means carried by sa1dtire, an lmpact producing means also. carried 1 by said tire andcooperating with said impact receiving means to indicate the extent ofuse to which the tlre has 6. The combination ofa vehicle wheel, tiretherefor and carried Within the body of saidtire the following elements:an 1nd1- cator to indicate the extentjof use to which the tire hasbeensubjected and means'operative upon said indicator to cause a' change inthe relative positions, of the components of the indicator in accordancewith the diswheel. I

in presence of two witnesses. f I

' JACOB H. FRIEDENWALD. I

Witnesses:

ETHEL KING, I Einvnstr J. Born 7 the movement of said means being v themeans carried by said tire for moving said impact producing ,means. 7

